<?php
header('Content-type:text/html;charset=utf-8');
const DISCOUNT=0.8;
$fruit1='香蕉';
$fruit2='苹果';
$fruit3='橘子';
$fruit1_num=2;
$fruit2_num=1;
$fruit3_num=3;
$fruit1_price=7.99;
$fruit2_price=6.89;
$fruit3_price=3.99;
$fruit1_total=$fruit1_num*$fruit1_price;
$fruit2_total=$fruit2_num*$fruit2_price;
$fruit3_total=$fruit3_num*$fruit3_price;
$total=($fruit1_total+$fruit2_total+$fruit3_total)*DISCOUNT;
$str="<table>";
$str.="<tr><td>商品名称</td><td>购买数量（斤）</td><td>商品价格（元/斤)</td></tr>";
$str.="<tr><td>$fruit1</td><td>$fruit1_num</td><td>$fruit1_price</td></tr>";
$str.="<tr><td>$fruit2</td><td>$fruit2_num</td><td>$fruit2_price</td></tr>";
$str.="<tr><td>$fruit3</td><td>$fruit3_num</td><td>$fruit3_price</td></tr>";
$str.="<tr><td colspan='3'>商品折扣：<span>".DISCOUNT."</span></td></tr>";
$str.="<tr><td colspan='3'>打折后购买商品总价格：{$total}元</td></tr>";
$str.="</table>";
echo $str;
/**
 * Created by PhpStorm.
 * User: lijifeng
 * Date: 2016/9/21
 * Time: 19:36
 */